NCEP North American Regional Reanalysis (NARR)

The NCEP North American Regional Reanalysis products are on the Eta 221 grid at 29 pressure levels. They were produced using the Eta 32 km model with 45 vertical layers. The input data includes all observations used in NCEP/NCAR Global Reanalysis project, and additional precipitation data, TOVS 1B radiances, profiler data, land surface and moisture data, etc. The output analyses are 3-hourly with additional 9 variables in the 3-hour forecasts to reflect accumulations or averages. NARR reruns from 20090311 to 20091214 are updated on February 4, 2010. In April 2015, NCEP has released rerun 4 from April 1, 2009 to January 31, 2015 to fix codes and Mexico precipitation data preparation. See NCEP's NARR Frequently Asked Questions

To Access Resource:

Questions? Email Resource Support Contact:

  • datahelp@ucar.edu

Temporal Range

  • Begin:  1979-01-01T0000+00
    End:  2025-10-01T0000+00

Keywords

Resource Type dataset
Temporal Range Begin 1979-01-01T0000+00
Temporal Range End 2025-10-01T0000+00
Temporal Resolution N/A
Bounding Box North Lat 85.33336015517088
Bounding Box South Lat 0.8973932684763501
Bounding Box West Long 148.64006936728754
Bounding Box East Long -2.567778658650184
Spatial Representation grid
Spatial Resolution 32463.0 m
Related Links

Related Resource #1 : NCEP's NARR Homepage

Related Resource #2 : International Soil Moisture Network

Related Resource #3 : Surface Radiation Budget Data

Related Resource #4 : NASA Water Vapor Project (NVAP)

Related Resource #5 : NCDC's NARR Archive

Related Resource #6 : NCEP's NARR Frequently Asked Questions
Additional Information N/A
Resource Format WMO GRIB1
Standardized Resource Format GRIB
Asset Size 16147382.234 MB
Legal Constraints

Creative Commons Attribution 4.0 International License
Access Constraints None
Software Implementation Language N/A

Resource Support Name N/A
Resource Support Email datahelp@ucar.edu
Resource Support Organization N/A
Distributor NSF NCAR Geoscience Data Exchange
Metadata Contact Name N/A
Metadata Contact Email datahelp@ucar.edu
Metadata Contact Organization NSF NCAR Geoscience Data Exchange

Author National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce
Publisher NSF National Center for Atmospheric Research
Publication Date 2005-08-30
Digital Object Identifier (DOI) Not Assigned
Alternate Identifier d608000
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress onGoing
Metadata Date 2025-10-09T01:46:31Z
Metadata Record Identifier edu.ucar.gdex::d608000
Metadata Language eng; USA
Suggested Citation National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce. (2005). NCEP North American Regional Reanalysis (NARR). NSF National Center for Atmospheric Research. https://gdex.ucar.edu/datasets/d608000. Accessed 25 October 2025.

Harvest Source